Stimmel G L, Falloon I R
J Clin Psychiatry. 1983 Nov;44(11):420-2.
Marked worsening of adverse effects and increased chlorpromazine plasma levels were observed in a 25-year-old schizophrenic outpatient who abruptly stopped smoking cigarettes. Presence and severity of adverse effects and chlorpromazine plasma levels correlated directly with tobacco smoking over a 16-month period.